This is kinda creepy, too. I did this survey a few weeks ago to see how much online advertisers know about me and what information is relevant. I fell in line with the general results, that only about half of the info they have is correct. If you want to take it, you can install a little plug in, it'll read your browser cookies and throw some questions your way to see how much advertisers know. Or if that freaks you out, just read the results. And turn off your cookies.